So someone with Austin Power's libido doesn't care who his partners are or who they do besides him? I beg to differ. As long as a person with an excess of lust can get his/her rocks off on time, they could very well still care a lot about what happens with those peple. Only when it's left unattended for too long, that person would do anyone and not care. But in the game, that part is covered by the public masturbation event instead. So I say Billy can still care.
As for mind control, I will give you that most of its applications would be evil. On the other hand, stopping a fight (or a crime) by forcibly calming people down, helping people with addictions and so on could be a grey area. Imagine for a moment that the Cuban Missile Crisis actually ended because someone 'convinced' Russia to back off. Or that someone 'convinced' England that the price of taking back the American colonies was too great. Would that have been evil? Tempting fate, changing what was meant to be, maybe. But evil?
Also, using mind control allows for someone to get their rocks off without the need to harm the person they are with, and they can make them forget afterwards. Still considered evil-ish, but it causes less harm (physical and psychological) than forceful options.
And yes, I put a lot of thought in this. I've written many erotic stories focusing on these fetishes and like any geek, I regularly wonder what I'd be like if I had such abilities. I would likely do a lot of good, while acting from the shadows to avoid those who would do me harm. But I'd still be having an above average amount of sex with women I'd normally not be with. And they'd all be very happy and very exclusive. And I'd always leave them better than how I found them.
Carl Jung speaks of our shadow, the traits of ourselves that society tells us are bad. Things like aggression, lust and a need to dominate others. My experience is if you suppress them for too long, they burst out when you least expect them, leading to most crimes of passion in the world. But if you appease them in a controlled fashion, nobody gets hurt.
But it's all academic. The lure of things like mind control is great and it would take a lot of self-control not to go over to the downside of the Schwarz. Give me telekinesis and I'd probably feel up random strangers up in the train...